Question about 1998 Ford Expedition

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Replacing a pcv valve on a 1998 ford expedition 5.4 engine

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  • Ford Master
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It's in the valve cover on top inside a big grommet and a hose is attached to it please go to rockauto.Com and look up your vehicle and then go to the exhaust and emission section and you will see what it looks like ok you have the PCM VALVE , HOSE ,AND GROMMET IN A KIT OR SEPARATELY THE MOTORCRAFT ONE SHOWS THE RUBBER GROMMET TO OK HAVE FUN STEPHEN

Posted on Oct 05, 2019

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  • Ford Master
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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

Anonymous

  • 92 Answers

SOURCE: 1998 Ford Explorer sport 4.0L 4x2 PCV Valve Location

the pcv is located on the rear(firewall) of the drivers side valve cover.turn counterclockwise and pull to remove be careful there are 2 small tabs inside the pcv hole in the valve cover(can feel with small finger) this is to hold valve in place so it wont leak.if you have a oil leak at the pcv a quick fix is to put a small amount of silicone around the pcv o-ring and install.wait hours for silicone to set up.

Posted on Oct 21, 2008

Anonymous

  • 1 Answer

SOURCE: 2003 FORD EXPEDITION PCV VALVE LOCATION

show me a picture. everyone else says it's on the passenger side. nothing white on driver side of my 03 expedition.

Posted on Mar 07, 2009

Anonymous

  • 1 Answer

SOURCE: 1998 ford expedition blinking overdrive light

This blinking light indicates a problem. You will have to have it scanned for trouble codes to find out
what it is.

Posted on Mar 29, 2009

fingaz22

michael schultz

  • 1068 Answers

SOURCE: My 2004 Ford Expedition 4.6l has a rough idle and

well i'm sorry that you got the miss information here on fixya. because all internal combustion engines need a pcv valve to operate properly.

now the information you got first is correct and pcv valve can set false codes like o2's and lean bank conditions also can cause you vechile to run or idle rough.

no there are a few different styles pcv valves and some times don't look like your convetional pcv. some are heated in different ways either by coolant ( witch look like a conventioanl pcv but with a coolant tube around them) then electricaly heated and they don't look like them at all. but one thing that has to stay the same is the pcv valve has to ventilate the crank case and will be found somewhere on or near the valve cover because it is the easiest and most accessible point of the engines crank case area. so i would look for that and usally on that vechile it is on the passanger side valve cover in the middle.

with that said and seeing you did all those repairs i would go right for that as my next step. but there is other thing that cold cause this issue like leaky injectors and is almost more likely becuase of the o2 sensor code and backfire. do you have the code # so i can look it up and best assist you?

see vechiles are hard to fix over the computer as i am trying so if you have any more question/info about this issue please ask and i will be glad to help.

Posted on Sep 22, 2009

Testimonial: "Cool thanks, i'll check the pcv valve/ line going into the back of the intake, if that doesn't work i'll go for the codes again....thanks again...."

pstockton83

  • 272 Answers

SOURCE: Where to find the pcv valve on a 1998 Suzuki Sidekick JX 1.6

it should be on the rear side of top case the by the on the valve cover opisite side of where you put oil in

Posted on Feb 25, 2010

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1 Answer

My 2001 expedition is idling rough and i hear a hiss comming from the engine near the rear but cant tell were its comming from


There is a large elbow shaped tube at the back of the intake plenum where the PCV valve hose connects. This tube gets a hole sucked in it due to oil fumes that come through the PCV valve and softens the rubber. To find the tube,simply follow the PCV valve tube from the valve cover on the passenger side of engine to the back of the intake.

Mar 05, 2015 | 2001 Ford Expedition

1 Answer

Code 171 error ford expedition 1998


There are a multitude of things that could result in a PO171 trouble code.
It might be the infamous PCV elbow problem.. Around 100K miles 5.4's are bad to rot out the PCV elbow on the back of the throttle body, this will cause bad idling problems and will throw lean codes when it gets really bad.
Find the PCV valve in the passengers side valve cover and trace the tube around to the back of the throttle body. With the engine running feel around the rubber elbow and see if you have a vacuum leak.

Here are some other things to try:
1. call your local dealer and ask them what it could be
2. Replace the front two Oxygen sensors.
3. Clean MAF sensor (especially if you've installed a K/N filter - could coat the wires with oil that collects dust).
4. Check/change air filter
5. Change the fuel filter (under drivers side frame)
6. Check fuel pressure

Hope this helps, Good luck.

Oct 30, 2013 | 2007 Chrysler PT Cruiser Touring Hatchback

1 Answer

1998 Expedition Eddie Bauer thick whitish grey smoke out tail pipe.?


Check your valve seal gasket it may leak oil into your valves, and or your pcv valve might be bad

Jun 05, 2012 | 1998 Ford Expedition

1 Answer

97 expedition 5.4 doesnt idle very good


Surging idle is usually caused by vacuum leaks. Ford 5.4L engines are notorious for the PCV hose elbow leaking back behind the throttle body.

The PCV tube goes from the right (passenger) side valve cover and loops around behind the valve body. Inspect this hose on BOTH ends.

Feb 21, 2012 | 1997 Ford Expedition

1 Answer

Installing pcv valve/ crankcase ventilation hose 2000 ford expedition


what engine

4.6L engine




Item Part Number Description 1 6C324 Crankcase vent connector and hose 2 6A666 Positive crankcase ventilation valve eda8fae.gif

May 16, 2010 | 2000 Ford Expedition

1 Answer

1998 ford exp. where is pvc valve located?


The PCV valve is located on the passenger side of the engine, in a grommet in the middle of the valve cover, with a hose connected to it.

Mar 11, 2010 | 2000 Ford Expedition

1 Answer

Multiple vacuum problems. Now receiving P0401 and P0308 codes.


spray carb. cleaner on vac lines while running. engine will change rpm when sprayed near vac leak

Jan 10, 2009 | 1998 Ford Expedition

3 Answers

Mass Air Flow Sensor, oxygen sensor and coil plugs


look for vacuum leaks the last 4 codes are lean codes
primarily lookm at the pcv hose noturious for collapsing

Sep 16, 2008 | 2000 Ford Expedition

3 Answers

2003 FORD EXPEDITION PCV VALVE LOCATION


show me a picture. everyone else says it's on the passenger side. nothing white on driver side of my 03 expedition.

Aug 16, 2008 | Mercury Mountaineer Cars & Trucks

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